Stock repurchase program, authorized amount Stock Repurchase Program, Authorized Amount Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Customer Customer [Domain] Redemption of senior notes Redemption Of Senior Notes And Senior Subordinated Notes Redemption of senior notes and senior subordinated notes. Letter of Credit Letter of Credit [Member] Net income Net income Net Income (Loss) Attributable to Parent Entity Emerging Growth Company Entity Emerging Growth Company Consolidated Entities Consolidated Entities [Axis] Preferred stock, cumulative dividends (in dollars per share) Preferred Stock Cumulative Dividends Preferred stock, cumulative dividends. Operating lease right of use assets Operating Lease, Right-of-Use Asset Dilution ratio Dilution Ratio Due To Third Amendment To Receivables Financing Agreement Dilution ratio due to third amendment to receivables financing agreement. Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Income Statement Location Income Statement Location [Axis] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Statistical Measurement Statistical Measurement [Domain] Entity Address, Address Line One Entity Address, Address Line One Other Other Intangible Assets [Member] LAMAR MEDIA CORP. AND SUBSIDIARIES Lamar Media Corporation And Subsidiaries [Member] Lamar Media Corporation and Subsidiaries. Proceeds from disposition of assets and investments Proceeds from Sale of Property, Plant, and Equipment Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Additional paid-in capital Additional Paid in Capital, Common Stock Entity Filer Category Entity Filer Category Dividends Dividends, Preferred Stock Operating lease, weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Other assets Other Assets, Noncurrent Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Number of shares available for grant (in shares) Available for future purchases, January 1, 2021 (in shares) Available for future purchases, March 31, 2021 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Net (decrease) increase in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Number of days sales outstanding Days Sales Outstanding Due To Third Amendment To Financing Agreement Days sales outstanding due to third amendment to financing agreement. Redeemed percentage of aggregate principal amount Debt Instrument, Redemption Price, Percentage Non-cash compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Gain on disposition of assets Gain on disposition of assets and investments Gain (loss) on disposition of assets Gain (Loss) on Disposition of Assets Document Fiscal Year Focus Document Fiscal Year Focus Term B Loan Facility Term B Loan Facility [Member] Term B loan facility. Debt, excluding current maturities Debt Instrument Carrying Amount Non Current Debt Instrument Carrying Amount Non Current Payments on senior credit facility term loans Repayments of Bank Debt Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Debt, net of deferred financing costs Long Term Debt Net Of Deferred Financing Costs Long term debt, net of deferred financing costs. Variable lease, cost Variable Lease, Cost The number of dilutive shares excluded from calculation of basic earnings per share resulting from the anti-dilutive effect for stock options (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Operating lease, weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Depreciation and Amortization Depreciation And Amortization Disclosure [Text Block] Depreciation and amortization disclosure. Sale of Stock Sale of Stock [Axis] Private Placement Private Placement [Member] Revenue, Product and Service [Extensible List] Revenue, Product and Service [Extensible Enumeration] Title of Individual Title of Individual [Domain] Award Type Award Type [Domain] Share Repurchase Program Share Repurchase Program [Domain] Credit Facility Credit Facility [Domain] Debt ratio Maximum Holding Debt Ratio For Applicability Of Restriction On Transfer Maximum holding debt ratio for applicability of restriction on transfer. ASSETS Assets [Abstract] Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Preferred stock, value Preferred Stock, Value, Issued Dividends declared Dividends, Cash Entity Address, City or Town Entity Address, City or Town Accumulated Deficit Retained Earnings [Member] Debt Instrument Debt Instrument [Axis] Estimated fair value of Long-term debt (including current maturities) Debt Instrument, Fair Value Disclosure Accretion expense Asset Retirement Obligation, Accretion Expense Thereafter Lessee Operating Lease Liability Payments Due After Year Four Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). For Up To Two Additional Periods For Up To Two Additional Periods [Member] For up to two additional periods. Distribution Restrictions [Abstract] Distribution Restrictions [Abstract] Distribution restrictions. Delinquency ratio Delinquency Ratio Due To Third Amendment To Receivables Financing Agreement Delinquency ratio due to third amendment to receivables financing agreement. Dividends/distributions Payments of Ordinary Dividends Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Stock repurchased during period Stock Repurchased and Retired During Period, Value Secured Debt Secured Debt [Member] Extinguishment of Debt Extinguishment of Debt [Axis] Leased assets obtained in exchange for operating lease liability Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Debt ratio related to actual position on senior credit facility Maximum Actual Holdings Debt Ratio Maximum actual holdings debt ratio. Investment in subsidiaries Investment In Subsidiaries Investment in subsidiaries. Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Percentage of awards vesting on grant date Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Principal payments on financing leases Principal payments on financing leases Finance Lease, Principal Payments Entity Interactive Data Current Entity Interactive Data Current Remaining borrowing capacity under revolving credit facility Line of Credit Facility, Remaining Borrowing Capacity Basic earnings per share (in dollars per share) Earnings Per Share, Basic Condensed Consolidating Balance Sheet Condensed Balance Sheet [Table Text Block] 2024 Lessee, Operating Lease, Liability, to be Paid, Year Three Revenues Revenue from Contract with Customer [Text Block] Document Type Document Type Disaggregation Revenue Disaggregation of Revenue [Table Text Block] Entity Current Reporting Status Entity Current Reporting Status Accounts Receivable Securitization Program Accounts Receivable Securitization Program [Member] Accounts Receivable Securitization Program Series A A Preferred Stock Series A A Preferred Stock [Member] Series AA preferred stock. Shares reserved for issuance to directors and employees Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Operating lease, cash payments Operating Lease, Payments Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Debt Debt instrument outstanding amount Long-term Debt, Gross Prior to February 15, 2025 Debt Instrument, Redemption, Period Two [Member] Plan Name Plan Name [Axis] Financing lease right of use assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Other noncurrent liabilities Liabilities, Other than Long-term Debt, Noncurrent Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Document Transition Report Document Transition Report Base Rate Base Rate [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Total liabilities and stockholders’ equity Liabilities and Equity Percentage of awards vesting on grant date Share-based Payment Arrangement, Tranche One [Member] Deferred income Contract with Customer, Liability, Current Proceeds received from accounts receivable securitization program Proceeds from Accounts Receivable Securitization Non-competition agreements Noncompete Agreements [Member] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Short-term Debt, Type Short-term Debt, Type [Domain] Logo advertising Logo Advertising [Member] Logo advertising. Earnings Per Share Earnings Per Share [Text Block] Employee Stock Purchase Plan Employee Stock Purchase Plan [Member] Employee stock purchase plan. Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Minimum Minimum [Member] Redemption price percentage of the principal amount to be purchased Debt Instrument Purchase Price After Change Of Control Percentage Percentage premium which may be required for repayment if the Company undergoes a change in control. Outstanding revolving credit facility Long-term Line of Credit 2023 Lessee, Operating Lease, Liability, to be Paid, Year Two Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Current deferred financing costs Deferred financing costs, Less current maturities Debt Issuance Costs, Current, Net Redemption period Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period Deferred financing costs Debt Issuance Costs, Net Subsequent Events Subsequent Events, Policy [Policy Text Block] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized LAMAR MEDIA CORP Subsidiaries [Member] Corporate expenses (exclusive of depreciation and amortization) Corporate expenses Corporate Expenses Excluding Depreciation And Amortization Corporate expenses excluding depreciation and amortization. Billboard advertising Billboard Advertising [Member] Billboard advertising. Contribution from parent Adjustments To Additional Paid In Capital Contribution From Parent Adjustments to additional paid in capital for contributions from parent Additions to asset retirement obligations Asset Retirement Obligation, Liabilities Incurred Trading Symbol Trading Symbol Dividends And Distributions Dividends And Distributions Policy Text Block [Policy Text Block] Dividends And Distributions Policy Text Block Stock Repurchase Program Stock Repurchase Program [Member] Stock repurchase program. Current liabilities: Liabilities, Current [Abstract] General and administrative expenses (exclusive of depreciation and amortization) General and administrative expenses General and Administrative Expense Acquisitions Payments to Acquire Businesses, Net of Cash Acquired Stock-Based Compensation Share-based Payment Arrangement [Text Block] Accounting Policies [Abstract] Accounting Policies [Abstract] Common stock shares issued for cash (in shares) Stock Issued During Period, Shares, New Issues Shelf Registration Shelf Registration [Member] Shelf Registration [Member] Debt, Less current maturities Debt Instrument Carrying Amount Current Debt Instrument Carrying Amount Current Principal amount redeemed Debt Instrument, Redemption Price, Principal Amount Redeemed Debt Instrument, Redemption Price, Principal Amount Redeemed Preferred stock dividend shares (in dollars per share) Preferred Stock Dividend Shares Amount paid and unpaid per share for dividends of preferred stock. Letter of credit outstanding balance Letters of Credit Outstanding, Amount Total operating lease liabilities Operating Lease, Liability Common stock, value Common Stock, Value, Issued Weighted-average discount rate Finance Lease, Weighted Average Discount Rate, Percent Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Non-operating (income) expenses Nonoperating Income (Expense) Equity Interest Issued or Issuable, Type Equity Interest Issued or Issuable, Type [Domain] Range of awards of target number of share Shares Subject To Awards As Percentage Of Target Number Of Shares Shares subject to awards as percentage of target number of shares. Transit advertising Transit Advertising [Member] Transit advertising. Reportable Legal Entities Reportable Legal Entities [Member] Purchase of treasury stock Treasury Stock, Value, Acquired, Par Value Method 2021 Sales Agreement 2021 Sales Agreement [Member] 2021 Sales Agreement Leases Lessee, Operating Leases [Text Block] Accumulated comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Amortization expense Finance Lease, Right-of-Use Asset, Amortization Net proceeds form the issuance of debt Proceeds from Debt, Net of Issuance Costs Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current 2021 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Restricted Stock Restricted Stock [Member] Debt issuance costs Payments of Debt Issuance Costs Proceeds received from note offering Proceeds from Issuance of Debt Document Period End Date Document Period End Date Debt Ratio Less Than Three Point Two Five Debt Ratio Less Than Three Point Two Five [Member] Debt ratio less than three point two five. Revenues from External Customers and Long-Lived Assets [Line Items] Revenues from External Customers and Long-Lived Assets [Line Items] Total operating expenses Costs and Expenses Class of Stock Class of Stock [Axis] Entity Registrant Name Entity Registrant Name Shares held in treasury Treasury Stock, Shares Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Cost, Product and Service [Extensible List] Cost, Product and Service [Extensible Enumeration] Condensed Consolidating Statements of Cash Flows Condensed Cash Flow Statement [Table Text Block] Balance of permitted transfers to parent company Balance Of Permitted Transfers To Parent Company Balance of permitted transfers to parent company allowed under the terms of Lamar Media Corp.'s senior subordinated and senior notes. Statements of Comprehensive Income Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] 1996 Equity Incentive Plan One Thousand Nine Hundred Ninety Six Equity Incentive Plan [Member] One thousand nine hundred ninety six Equity incentive plan. Cash dividends declared per share of common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Accrued expenses Accrued Liabilities, Current Distributions paid Payments of Dividends (Increase) decrease in: Increase (Decrease) in Operating Assets [Abstract] Options Share-based Payment Arrangement, Option [Member] Prepaid expenses Increase (Decrease) in Prepaid Expense Equity [Abstract] Equity [Abstract] Consolidation Items Consolidation Items [Domain] Depreciation and Amortization Expense Excluded from Operating Expenses in its Condensed Consolidated Statements of Income and Comprehensive Income Depreciation And Amortization Expenses Excluded From Operating Expenses Table [Table Text Block] Depreciation and amortization expenses excluded from operating expenses. Common Stock Common Stock [Member] Interest income Investment Income, Interest Variable Rate Variable Rate [Axis] Operating lease liabilities Increase Decrease In Operating Lease Liabilities Increase decrease in operating lease liabilities. Dividend to parent Dividend To Parent This element represents the total aggregate cash dividends to parent by the entity. Information about Geographic Areas Segment Reporting Disclosure [Text Block] Weighted-average remaining lease term Finance Lease, Weighted Average Remaining Lease Term Operating income Operating Income (Loss) Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Current operating lease liabilities Operating Lease, Liability, Current Information Related to Asset Retirement Obligations Schedule of Change in Asset Retirement Obligation [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Stock-based compensation Share-based Payment Arrangement, Noncash Expense Variable Rate Variable Rate [Domain] Add’l Paid in Capital Additional Paid-in Capital [Member] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Dividends paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Long-term Debt, Type Long-term Debt, Type [Domain] Effect of exchange rate changes in cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Treasury Stock Treasury Stock [Member] Accrued expenses Increase (Decrease) in Accrued Liabilities Proceeds received from senior credit facility term loans Proceeds received from term B loans Proceeds from Bank Debt Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Cash paid for foreign, state and federal income taxes Income Taxes Paid Proceeds received from revolving credit facility Proceeds from Lines of Credit Other liabilities Increase (Decrease) in Other Operating Liabilities Percentage of principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Capital expenditures Payments to Acquire Property, Plant, and Equipment Other current liabilities Other Liabilities, Current Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Total liabilities Liabilities Legal Entity [Axis] Legal Entity Legal Entity [Axis] Receivables Increase (Decrease) in Receivables Award Type Award Type [Axis] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Summary of Maturities of Operating Lease Liabilities Lessee, Operating Lease, Liability, Maturity [Table Text Block] Consolidation Items Consolidation Items [Axis] Stockholder's equity Beginning Balance Ending Balance Stockholder's equity Stockholders' Equity Attributable to Parent Percentage of commitment to maintain minimum borrowings Percentage Of Commitment To Maintain Minimum Borrowings Percentage of commitment to maintain minimum borrowings. Common stock, shares issued (in shares) Common Stock, Shares, Issued Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Other Notes with Various Rates and Terms Other Notes With Various Rates And Terms [Member] Other notes with various rates and terms. Loss on extinguishment of debt Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Cash used for purchase of treasury stock Payments for Repurchase of Common Stock Redemption percentage of issued notes which remain outstanding Debt Instrument Redemption Percentage Of Outstanding Post Redemption Debt instrument redemption percentage of outstanding post redemption. Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Debt instrument repurchased under the program Debt Instrument, Repurchase Amount Non-employee Director Non Employee Director [Member] Non-employee director. Operating lease liabilities Operating Lease, Liability, Noncurrent Common stock, shares available to be sold Common Stock Capital Shares Amount Reserved For Future Issuance Common stock capital shares amount reserved for future issuance. Aggregate principal amount of debt issued Gross amount of company's long term debt Debt Instrument, Face Amount Interest expense Interest Expense City Area Code City Area Code Accumulated deficit Retained Earnings (Accumulated Deficit) Increase in dilution ratio Increase In Dilution Ratio Due To Third Amendment To Receivables Financing Agreement Increase in dilution ratio due to third amendment to financing agreement. Expiration date of options granted under equity incentive plan Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Common stock purchase plan (in shares) Purchases (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Percentage of Awards Vesting On Last Day of Each Directors Term Share-based Payment Arrangement, Tranche Two [Member] Share Repurchase Program Share Repurchase Program [Axis] Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Asset Retirement Obligations Asset Retirement Obligation Disclosure [Text Block] Delinquency ratio Delinquency Ratio Due To Fourth Amendment To Receivables Financing Agreement Delinquency ratio due to fourth amendment to receivables financing agreement. Summary of ESPP Share Activity Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Payments on revolving credit facility Repayments of Lines of Credit New Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Distributions paid, preferred stockholders, per share Preferred Stock, Dividends, Per Share, Cash Paid Finite-Lived Intangible Assets by Major Class Finite-Lived Intangible Assets by Major Class [Axis] Income tax expense (benefit) Income Tax Expense (Benefit) Receivables, net of allowance for doubtful accounts Accounts Receivable, after Allowance for Credit Loss, Current Borrowings on long-term debt Proceeds from Issuance of Long-term Debt Accumulated Comprehensive Income (Loss) [Member] Equity Components [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Total current assets Total current assets Assets, Current Sale of Stock Sale of Stock [Domain] Distribution Restrictions Distribution Restrictions Disclosure [Text Block] Distribution restrictions under terms of the indentures relating to outstanding notes and terms of the senior credit facility. Total undiscounted operating lease payments Lessee, Operating Lease, Liability, to be Paid Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Options granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Entity File Number Entity File Number Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Current maturities of long-term debt, net of deferred financing costs Debt, net of deferred financing costs, Less current maturities Current maturities of long-term debt Long-term Debt, Current Maturities Aggregate offering price of common stock issuable Aggregate Offering Price Of Common Stock Issuable Aggregate offering price of common stock issuable. Product and Service Product and Service [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Small Business Entity Small Business Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Accounting Standards Update and Change in Accounting Principle [Abstract] Accounting Standards Update and Change in Accounting Principle [Abstract] 3 3/4% Senior Notes Three Point Three By Four Percent Senior Notes [Member] Three point three by four percent senior notes. Equity Component Equity Component [Domain] Increase in delinquency ratio Increase In Delinquency Ratio Due To Third Amendment To Receivables Financing Agreement Increase in delinquency ratio due to third amendment to receivables financing agreement. 2022 Lessee, Operating Lease, Liability, to be Paid, Year One Foreign currency translation adjustments Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Available cumulative credit Available Cumulative Credit Amount of additional cumulative credit available for transfers to parent company under the terms of Lamar Media Corp.'s senior credit facility. Extinguishment of Debt, Type Extinguishment of Debt, Type [Domain] Statement [Line Items] Statement [Line Items] Noncurrent deferred financing costs Deferred financing costs, excluding current maturities Debt Issuance Costs, Noncurrent, Net Liabilities [Abstract] Liabilities [Abstract] Short-term Debt, Type Short-term Debt, Type [Axis] Summarized Financial Information of Subsidiaries Condensed Financial Statements [Text Block] Available borrowing on accounts receivable securitization Accounts Receivable Securitization Available Borrowing Amount Accounts receivable securitization available borrowing amount. 2025 Lessee, Operating Lease, Liability, to be Paid, Year Four Debt Disclosure [Abstract] Debt Disclosure [Abstract] Entity Address, State or Province Entity Address, State or Province Current financing lease liabilities Finance Lease, Liability, Current Income (loss) before income tax expense (benefit) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Equity in (earnings) loss of subsidiaries Equity In Earnings Loss Of Subsidiaries Equity in earnings loss of subsidiaries. (Increase) decrease in intercompany notes receivable Increase Decrease In Intercompany Notes Receivables Increase decrease in intercompany notes receivables. Summary of Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Document Information [Table] Document Information [Table] Segment Reporting [Abstract] Segment Reporting [Abstract] Entity Entity [Domain] Dividends (to) from parent Dividends To From Parent Dividends (to) from parent. Estimated Life (Years) Finite-Lived Intangible Asset, Useful Life Customer Customer [Axis] Interest expense Finance Lease, Interest Expense Trade accounts payable Increase (Decrease) in Accounts Payable, Trade Entity Shell Company Entity Shell Company Local Phone Number Local Phone Number Vesting Vesting [Axis] Senior Credit Facility Senior Credit Facility [Member] Senior Credit Facility. Net proceeds from issuance of common stock Proceeds from Issuance of Common Stock Total assets Assets Plan Name Plan Name [Domain] Common stock, shares authorized (in shares) Common Stock, Shares Authorized 3 5/8% Senior Notes Three Point Five By Eight Percent Senior Notes [Member] Three Point Five By Eight Percent Senior Notes Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Geographical Geographical [Domain] Secured debt ratio Secured debt ratio Ratio of Indebtedness to Net Capital Title of Individual Title of Individual [Axis] Net income applicable to common stock Net Income (Loss) Available to Common Stockholders, Basic Lamar Media Parent Company [Member] Product and Service Product and Service [Domain] Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Revolving Credit Facility Revolving Credit Facility [Member] Depreciation, Depletion and Amortization [Abstract] Depreciation, Depletion and Amortization [Abstract] Net cash provided by operating activities Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Entity Tax Identification Number Entity Tax Identification Number Payments on accounts receivable securitization program Repayments of Accounts Receivable Securitization Geographical Geographical [Axis] Weighted average common shares outstanding basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Vesting Vesting [Domain] Redemption percentage of aggregate principal amount of senior notes Debt Instrument Principal Amount Redemption Maximum Percentage Debt instrument principal redemption maximum percentage. Debt repurchase program, authorized amount Debt Repurchase Program Authorized Amount Debt repurchase program, authorized amount. Site locations Site Locations [Member] Site locations. Corporate expenses Corporate Expenses [Member] Corporate expenses. Foreign Countries Non-US [Member] Guarantor Subsidiaries Guarantor Subsidiaries [Member] Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Net cash used in financing activities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax [Abstract] Cost of shares held in treasury Treasury Stock, Value Weighted average common shares used in computing earnings per share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Deferred income tax liabilities Deferred Income Tax Liabilities, Net Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Trade accounts payable Accounts Payable, Current 4% Senior Notes Four Percent Senior Notes [Member] Four percent senior notes. Dividends/distributions to common shareholders Dividends, Common Stock Proceeds received from revolving credit facility Proceeds from Long-term Lines of Credit Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Direct advertising expenses (exclusive of depreciation and amortization) Direct advertising expenses Cost of Goods and Services Sold Common Class B Common Class B [Member] Customer lists and contracts Customer Lists And Contracts [Member] Customer lists and contracts. 5 3/4% Senior Notes Five Point Three By Four Percent Senior Notes [Member] Five point three by four percent Senior Notes. Consolidated Entities Consolidated Entities [Domain] Non-Guarantor Subsidiaries Non-Guarantor Subsidiaries [Member] Income Statement Location Income Statement Location [Domain] Accumulated Comprehensive Income (Loss) Comprehensive Income [Member] Dilution ratio Dilution Ratio Due To Fourth Amendment To Receivables Financing Agreement Dilution ratio due to fourth amendment to receivables financing agreement. Additional shares reserved (in shares) Additional shares reserved (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized Net property, plant and equipment Net property, plant and equipment Property, Plant and Equipment, Net Issuance of common stock through stock awards Stock Issued During Period Value Performance Stock Awards Stock issued during period value performance stock awards. Dividends paid Dividends, Preferred Stock, Cash Other liabilities Other Liabilities, Noncurrent Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Purchase of treasury stock (in shares) Treasury Stock, Shares, Acquired Debt Instrument [Line Items] Debt Instrument [Line Items] Principal payments on long-term debt Repayments of Long-term Debt Earnings per share: Earnings Per Share [Abstract] Direct advertising expenses Advertisement Expense [Member] Advertisement expense. Property, plant and equipment Property, Plant and Equipment, Gross Loss on debt extinguishment on cash Cash Portion Of Gains Losses On Extinguishment Of Debt Cash portion of gains losses on extinguishment of debt. Foreign currency translations Total other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Sales Agreement Equity Distribution Agreement [Member] Equity distribution agreement. Document Quarterly Report Document Quarterly Report Revenue from external customers Revenues Performance Based Compensation Performance Based Compensation [Member] Performance Based Compensation. Other assets Increase (Decrease) in Other Operating Assets Condensed Consolidating Statements of Income and Comprehensive Income Condensed Income Statement [Table Text Block] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Goodwill gross carrying amount Goodwill, Gross Operating expenses (income) Operating expenses (income) Costs and Expenses [Abstract] Long-term debt Debt, net of deferred financing costs, excluding current maturities Long-term Debt, Excluding Current Maturities Compensation expense related to performance based compensation agreements Share-based Payment Arrangement, Expense Intangible assets, net Intangible Assets, Net (Including Goodwill) Document Fiscal Period Focus Document Fiscal Period Focus Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Amortization included in interest expense Amortization of Debt Issuance Costs 2019 Employee Stock Purchase Plan Two Thousand Nineteen Employee Stock Purchase Plan [Member] Two thousand nineteen employee stock purchase plan. Common Class A Common Class A [Member] Eliminations Consolidation, Eliminations [Member] Common stock, shares sold (in shares) Sale of Stock, Number of Shares Issued in Transaction Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Current assets: Assets, Current [Abstract] Prior to February 15, 2023 Debt Instrument, Redemption, Period One [Member] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Interest expense (income), net Interest Income (Expense), Nonoperating, Net Leases [Abstract] Leases [Abstract] Entity Central Index Key Entity Central Index Key LIBO Rate London Interbank Offered Rate (LIBOR) [Member] Security Exchange Name Security Exchange Name Increase in days sales outstanding Increase In Days Sales Outstanding Due To Third Amendment To Financing Agreement Increase in days sales outstanding due to third amendment to financing agreement. (Decrease) increase in: Increase (Decrease) in Operating Liabilities [Abstract] Equity Interest Type Equity Interest Type [Axis] Advertising Revenues, Other Revenues, Arrangements with Multiple Performance Obligations, Deferred Revenues, Practical Expedients and Exemptions Revenue from Contract with Customer [Policy Text Block] Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Asset Retirement Obligation Disclosure [Abstract] Asset Retirement Obligation Disclosure [Abstract] Ratio of indebtedness to net capital minimum Ratio Of Indebtedness To Net Capital Minimum Ratio of indebtedness to net capital minimum. Weighted average common shares outstanding diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Issuance of common stock through stock awards (in shares) Stock Issued During Period Shares Performance Stock Awards Stock issued during period shares performance stock awards. Cash dividends declared and paid on preferred stock Dividends Preferred Stock Declared Dividends preferred stock declared. Long-term Debt, Type Long-term Debt, Type [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Adjusted base rate Debt Instrument, Basis Spread on Variable Rate Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Other expense (income) Nonoperating Income (Expense) [Abstract] Asset retirement obligation Beginning Balance Ending Balance Asset Retirement Obligations, Noncurrent Class of Stock [Line Items] Class of Stock [Line Items] Credit Facility Credit Facility [Axis] Finite-Lived Intangible Assets, Major Class Name Finite-Lived Intangible Assets, Major Class Name [Domain] Net cash used in investing activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Changes in operating assets and liabilities Increase (Decrease) in Operating Capital [Abstract] Issuance of common stock through employee purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] General and administrative expenses General and Administrative Expense [Member] Significant Accounting Policies Business Description and Accounting Policies [Text Block] Intercompany loan proceeds Proceeds from (Repayments of) Related Party Debt Total current liabilities Liabilities, Current Class of Stock Class of Stock [Domain] Dividends/Distributions Dividends And Distributions Disclosure [Text Block] Dividends and distributions disclosure. 4 7/8% Senior Notes Four Point Seven By Eight Percent Senior Notes [Member] Four point seven by eight percent senior notes. Maximum borrowing limit of incremental loan facility Line of Credit Facility, Maximum Borrowing Capacity Net revenues Net revenues Revenue from Contract with Customer, Including Assessed Tax Entity Address, Postal Zip Code Entity Address, Postal Zip Code Stock repurchase program expiry date Stock Repurchase Program Expiration Date Document Information [Line Items] Document Information [Line Items] Debt Instrument, Name Debt Instrument, Name [Domain] Title of 12(b) Security Title of 12(b) Security Net carrying value of long lived assets Long-Lived Assets Other current assets Other Assets, Current Statement [Table] Statement [Table] Goodwill accumulated amortization Goodwill Accumulated Amortization The accumulated amount of amortization of goodwill as of the balance sheet date. New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Domain] Statistical Measurement Statistical Measurement [Axis] Debt Instrument Repurchase Program Debt Instrument Repurchase Program [Member] Debt instrument repurchase program. Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Cover [Abstract] Cover [Abstract] Preferred Stock Preferred Stock [Member] Financing lease liabilities Finance Lease, Liability, Noncurrent Distributions to non-controlling interest Payments of Distributions to Affiliates Intangible assets, net Finite-Lived Intangible Assets, Net Goodwill Goodwill External Customers External Customers [Member] External Customers [Member] Advertising Advertising [Member] Senior or Senior Subordinated Notes and other Indebtedness Senior Or Senior Subordinated Notes And Other Indebtedness [Member] Senior or senior subordinated notes and other indebtedness. Depreciation and amortization Depreciation, Amortization and Accretion, Net Liabilities settled Asset Retirement Obligation, Liabilities Settled Termination of Lease Agreements Termination Of Lease Agreement [Member] Termination of lease agreement. Operating lease, cost Operating Lease, Cost Debt Instrument, Redemption, Period Debt Instrument, Redemption, Period [Axis] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Long-term Debt Long-term Debt [Text Block] Deferred tax expense (benefit) Deferred Income Tax Expense (Benefit) Contributions from (to) parent Proceeds From Contributions From (To) Parent Proceeds From Contributions From (To) Parent Adjustments to reconcile net income to net cash provided by operating activities Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]